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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2016 Vasily Khoruzhick <anarsoul@gmail.com>
- */
- #include <cpu_func.h>
- #include <asm/cache.h>
- #include <linux/types.h>
- #include <common.h>
- #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
- void invalidate_dcache_all(void)
- {
- /* Flush/Invalidate I cache */
- asm volatile("mcr p15, 0, %0, c7, c5, 0\n" : : "r"(0));
- /* Flush/Invalidate D cache */
- asm volatile("mcr p15, 0, %0, c7, c6, 0\n" : : "r"(0));
- }
- void flush_dcache_all(void)
- {
- return invalidate_dcache_all();
- }
- void invalidate_dcache_range(unsigned long start, unsigned long stop)
- {
- start &= ~(CONFIG_SYS_CACHELINE_SIZE - 1);
- stop &= ~(CONFIG_SYS_CACHELINE_SIZE - 1);
- while (start <= stop) {
- asm volatile("mcr p15, 0, %0, c7, c6, 1\n" : : "r"(start));
- start += CONFIG_SYS_CACHELINE_SIZE;
- }
- }
- void flush_dcache_range(unsigned long start, unsigned long stop)
- {
- return invalidate_dcache_range(start, stop);
- }
- #else /* #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) */
- void invalidate_dcache_all(void)
- {
- }
- void flush_dcache_all(void)
- {
- }
- #endif /* #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) */
- /*
- * Stub implementations for l2 cache operations
- */
- __weak void l2_cache_disable(void) {}
- #if CONFIG_IS_ENABLED(SYS_THUMB_BUILD)
- __weak void invalidate_l2_cache(void) {}
- #endif
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